Question

multiple - choice question
what is the role of nadph in photosynthesis?
it replaces electrons lost by photosystem i
it acts as an electron carrier
it generates atp
rewatch

Explanation:

NADPH is produced in the light - dependent reactions of photosynthesis. In the Calvin cycle (light - independent reactions), it acts as a reducing agent. Electrons are carried by NADPH. Water replaces electrons lost by photosystem II (not photosystem I as wrongly stated in the first option). ATP synthase is responsible for generating ATP (so the third option is incorrect).

Answer:

It acts as an electron carrier.